No information is available for this page. Tax Exempt Organization Search.Select Database Search All Pub 78 Data Auto-Revocation List Determination Letters Form 990-N (e-Postcard) Copies of Returns. The County of DuPage Wheaton, Illinois Recorder's Online Documents Search Documents Please complete at least one field below. DORA is the state's umbrella regulatory agency, charged with managing licensing and registration for multiple professions and businesses. Get your refund status. Use the following pages to complete your Illinois State and Federal income tax withholding, or W-4 information. Most questions about your property appraisal or property tax should be addressed to your local appraisal district or tax assessor-collector.